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Addition and Subtraction for Class 2: Rules, Examples, Word Problems and Free Worksheet with Answers

Addition and subtraction for Class 2 is the foundation of every maths topic your child will meet later, from multiplication to money and measurement. In Class 2, children move from adding and subtracting small numbers to working with 2-digit numbers, including carrying (regrouping) and borrowing. This guide explains each rule in simple language, with solved examples, word problems and a free printable worksheet with answers, so parents, teachers and students can learn and practise in one place.

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Addition and subtraction for Class 2 students
☰ Table of Contents

    What Will Your Child Learn in Addition and Subtraction in Class 2?

    In Class 1, children mostly work with numbers up to 20 or 100 using objects and pictures. In Class 2, the same ideas become more formal. These are the basic addition and subtraction topics in the Class 2 curriculum:

    • Adding 2-digit numbers without carrying (for example, 34 + 25)
    • Adding 2-digit numbers with carrying, also called regrouping (for example, 47 + 36)
    • Subtracting 2-digit numbers without borrowing (for example, 68 − 34)
    • Subtracting 2-digit numbers with borrowing (for example, 52 − 27)
    • Understanding that addition and subtraction are opposites
    • Solving simple word problems
    • Finding a missing number (for example, 40 + __ = 75)
    • Using a number line and place value (tens and ones)

    Curriculum details can differ slightly between boards such as CBSE, ICSE and state boards, and between schools in different countries. The core skills above are common to almost all Grade 2 syllabuses. Always check your child’s textbook for the exact chapter order.

    Before You Begin: Place Value Matters

    Every 2-digit number has tens and ones. Children who understand this find addition and subtraction much easier.

    Take the number 47:

    • The digit 4 is in the tens place. It means 4 tens, or 40.
    • The digit 7 is in the ones place. It means 7 ones, or 7.
    • So, 47 = 40 + 7.

    When we add or subtract in columns, we always start from the ones and then move to the tens. Keeping the digits lined up in the right columns is the most important habit to build.

    Addition for Class 2: Rules and Examples

    Addition means putting numbers together to find the total. The sign for addition is +. The answer is called the sum.

    Rules of Addition

    1. Order does not matter. 12 + 35 = 35 + 12 = 47. This is called the commutative property.
    2. Adding zero changes nothing. 56 + 0 = 56.
    3. Line up the digits. Ones go under ones, and tens go under tens.
    4. Start from the ones. Add the ones first, then the tens.
    5. Carry when the ones add up to 10 or more. Write the ones digit and carry the tens digit to the tens column.

    Example 1: Addition Without Carrying

    Add 34 + 25.

    • Ones: 4 + 5 = 9
    • Tens: 3 + 2 = 5
    • Answer: 59

    Example 2: Addition With Carrying (Regrouping)

    Add 47 + 36.

    • Ones: 7 + 6 = 13. Write 3 in the ones place and carry 1 to the tens column.
    • Tens: 4 + 3 = 7, and 7 + 1 (carried) = 8
    • Answer: 83

    You can explain it to your child like this: “13 ones is the same as 1 ten and 3 ones. So we move the 1 ten across to the tens column.”

    Example 3: Using a Number Line

    Add 15 + 7. Start at 15 and jump forward 7 steps: 16, 17, 18, 19, 20, 21, 22. The answer is 22.

    Example 4: The “Make Ten” Trick

    Add 8 + 6. Break 6 into 2 and 4. First 8 + 2 = 10. Then 10 + 4 = 14. This mental maths trick helps children add faster without counting on fingers.

    Subtraction for Class 2: Rules and Examples

    Subtraction means taking away one number from another, or finding the difference between two numbers. The sign for subtraction is −. The answer is called the difference.

    Rules of Subtraction

    1. Order matters. 8 − 3 is not the same as 3 − 8. In Class 2, we always subtract the smaller number from the bigger number.
    2. Subtracting zero changes nothing. 45 − 0 = 45.
    3. A number minus itself is zero. 29 − 29 = 0.
    4. Start from the ones. Subtract the ones first, then the tens.
    5. Borrow when the top ones digit is smaller. Take 1 ten from the tens column and add it as 10 ones.
    6. Check with addition. Add your answer to the smaller number. You should get the bigger number back.

    Example 1: Subtraction Without Borrowing

    Subtract 68 − 34.

    • Ones: 8 − 4 = 4
    • Tens: 6 − 3 = 3
    • Answer: 34

    Example 2: Subtraction With Borrowing

    Subtract 52 − 27.

    • Ones: 2 is smaller than 7, so we borrow. Take 1 ten from the 5 tens. Now the tens digit becomes 4, and the ones become 12.
    • Ones: 12 − 7 = 5
    • Tens: 4 − 2 = 2
    • Answer: 25

    Check: 25 + 27 = 52. Correct!

    Example 3: Using a Number Line

    Subtract 23 − 6. Start at 23 and jump back 6 steps: 22, 21, 20, 19, 18, 17. The answer is 17.

    How Addition and Subtraction Are Connected

    Addition and subtraction are inverse operations, which means one undoes the other. This idea helps children check their own work.

    Here is a fact family using the numbers 14, 9 and 23:

    • 14 + 9 = 23
    • 9 + 14 = 23
    • 23 − 9 = 14
    • 23 − 14 = 9

    When a child sees all four facts together, they understand that the three numbers belong to one family.

    Common Mistakes Children Make (and How to Fix Them)

    • Forgetting to carry. Example: 47 + 36 written as 73. Remind your child that 13 ones must become 1 ten and 3 ones.
    • Subtracting the smaller digit from the bigger digit. Example: 52 − 27 written as 35. Teach that the top number must always be bigger in each column, so borrowing is needed.
    • Misaligned digits. Using squared paper or drawing tens and ones columns helps.
    • Guessing the operation in word problems. Practise circling clue words every time.
    • Not checking the answer. Make it a habit to check subtraction by adding and addition by subtracting.

    Word Problems on Addition and Subtraction for Class 2

    Word problems turn maths into real-life stories. Many children find them hard, not because the maths is difficult, but because they are unsure which operation to use. Teach them to look for clue words.

    Use addition (+) when you see

    Use subtraction (−) when you see

    total, altogether, in all

    left, remain, remaining

    sum, add, plus

    difference, fewer, less

    gets more, finds more

    gives away, loses, eats, spends

    how many in all

    how many more, how many are left

    Steps to Solve Any Word Problem

    1. Read the problem twice, slowly.
    2. Underline the numbers.
    3. Circle the clue word.
    4. Decide: add or subtract?
    5. Write the number sentence and solve it.
    6. Write the answer with a unit (for example, “63 stickers”).

    Solved Word Problem 1 (Addition)

    Priya has 28 pencils. Her brother gives her 15 more pencils. How many pencils does Priya have now?

    • Clue word: more, so we add.
    • 28 + 15 = 43
    • Answer: Priya has 43 pencils.

    Solved Word Problem 2 (Subtraction)

    A basket has 64 mangoes. Dad takes out 29 mangoes. How many mangoes are left in the basket?

    • Clue word: left, so we subtract.
    • 64 − 29 = 35
    • Answer: 35 mangoes are left.

    Solved Word Problem 3 (Comparing)

    Tara has 47 books. Neel has 39 books. How many more books does Tara have?

    • Clue words: how many more, so we subtract.
    • 47 − 39 = 8
    • Answer: Tara has 8 more books.

    Simple Tips for Parents and Teachers

    These simple addition and subtraction lessons for 2nd grade work well at home and in the classroom:

    1. Use real objects. Buttons, coins, blocks or beads let children see the tens and ones.
    2. Practise a little every day. Ten minutes daily is better than one long session each week.
    3. Play maths games. Dice games, card games and shop-and-pay role play make practice fun.
    4. Draw it out. Bundles of ten sticks and loose single sticks show regrouping clearly.
    5. Praise effort, not only correct answers. Children who feel safe making mistakes learn faster.
    6. Move step by step. Make sure your child is comfortable with the no-carrying and no-borrowing questions before moving to regrouping.
    7. Link maths to daily life. Ask questions while shopping, cooking or counting toys.

    If your child needs more guided support, a structured online maths program with a live teacher can help build confidence alongside school learning. You can explore the online maths program from Oratrics for Class 1 to 10 students.

    Free Addition and Subtraction Worksheet for Class 2 (With Answers)

    Use this worksheet for class 2 math addition and subtraction exercises at home or in school. It has practice problems for addition and subtraction for grade 2 students at four levels: addition without carrying, addition with carrying, subtraction without borrowing and subtraction with borrowing, followed by word problems and missing numbers. You can copy it into a document and print it for free.

    Name: ____________________ Date: ____________ Score: ______ / 28

    Section A: Add (No Carrying)

    1. 23 + 14 = ____
    2. 45 + 32 = ____
    3. 51 + 26 = ____
    4. 60 + 28 = ____
    5. 34 + 45 = ____

    Section B: Add (With Carrying)

    1. 28 + 15 = ____
    2. 47 + 36 = ____
    3. 59 + 24 = ____
    4. 38 + 46 = ____
    5. 65 + 27 = ____

    Section C: Subtract (No Borrowing)

    1. 47 − 23 = ____
    2. 86 − 41 = ____
    3. 59 − 36 = ____
    4. 78 − 50 = ____
    5. 95 − 63 = ____

    Section D: Subtract (With Borrowing)

    1. 52 − 18 = ____
    2. 74 − 29 = ____
    3. 63 − 37 = ____
    4. 81 − 46 = ____
    5. 90 − 54 = ____

    Section E: Word Problems

    1. Riya has 36 stickers. Her friend gives her 27 more stickers. How many stickers does Riya have now?
    2. A bus has 58 passengers. At the next stop, 19 passengers get off. How many passengers are still on the bus?
    3. A library has 45 story books and 38 science books. How many books are there in all?
    4. Aman had 72 marbles. He lost 25 marbles while playing. How many marbles does he have left?
    5. Meera scored 64 runs. Rohan scored 48 runs. How many more runs did Meera score than Rohan?

    Section F: Find the Missing Number

    1. 40 + ____ = 75
    2. ____ − 18 = 30
    3. 52 = ____ + 27

    Worksheet Answer Key

    Section A: 1) 37 2) 77 3) 77 4) 88 5) 79

    Section B: 6) 43 7) 83 8) 83 9) 84 10) 92

    Section C: 11) 24 12) 45 13) 23 14) 28 15) 32

    Section D: 16) 34 17) 45 18) 26 19) 35 20) 36

    Section E:

    1. 36 + 27 = 63 stickers
    2. 58 − 19 = 39 passengers
    3. 45 + 38 = 83 books
    4. 72 − 25 = 47 marbles
    5. 64 − 48 = 16 runs

    Section F: 26) 35 27) 48 28) 25

    How to Use the Worksheet

    • Score 25 to 28: Excellent. Your child is ready for 3-digit numbers.
    • Score 18 to 24: Good. Revisit the sections where mistakes happened.
    • Score below 18: Go back to the examples above and practise with objects or drawings before trying again.

    For more addition and subtraction worksheets for class 2, change the numbers in each section to create fresh practice sets. Keep the same pattern: easy first, then carrying and borrowing, then word problems.

    Conclusion

    Addition and subtraction for Class 2 is not about memorising tricks. It is about understanding tens and ones, learning when to carry or borrow and checking answers with the opposite operation. With short daily practice, real-life examples and the worksheet above, most children grow confident quickly. Start with the easy questions, celebrate small wins and move forward step by step.

    Frequently Asked Questions

    Class 2 typically covers two digit addition and subtraction, including carrying and borrowing, along with simple word problems that require choosing the correct operation based on the situation described.

    Encourage your child to say each step out loud while solving, use small objects like counters or coins to represent tens and ones, and practice a few questions regularly rather than many at once.

    Word problems require reading comprehension alongside math skill, since a child first has to understand the situation and decide whether to add or subtract before any calculation begins.

    Around ten to fifteen minutes of focused daily practice is usually enough, since short, regular sessions help the concept settle in better than long, infrequent ones for children at this age.

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